Partial forming mold for special-shaped shell

Abstract

The invention discloses a special-shaped shell local forming die and relates to the technical field of metal material plastic machining and forming. An upper die plate is assembled to a workbench on apunch press through fastening bolts. The upper die plate, an upper die cushion plate and a male die fixing ring are assembled together through socket head cap screws. A male die body and the male diefixing ring are assembled together through a nut. A compression spring is fixed between the male die body and the upper die cushion plate. A lower die plate is assembled to a lower workbench of the punch press through fastening bolts. The lower die plate, a lower die cushion plate and a prestress ring are fixed together through socket head cap screws. A divided-plate female die body is arranged coaxially in the prestress ring. An ejection block is arranged between the bottom of the divided-plate female die body and the lower die cushion plate. An ejection rod is perpendicularly and coaxiallyarranged in the middles of the lower die cushion plate and the lower die plate. A lantern ring is coaxially arranged between the male die fixing ring and the divided-plate female die body and coaxially sleeves the outer wall of the male die body. By means of the forming die, the dimensional precision of a workpiece is improved, and a well-formed forge piece with good mechanical performance can beobtained.

Description

technical field [0001] The invention relates to the technical field of metal material plastic processing and forming, in particular to the local upsetting forming of the mouth of a light alloy special-shaped component, and in particular to a local forming mold for a special-shaped shell. Background technique [0002] Aluminum and magnesium alloys have high strength, corrosion resistance, light weight, and good processability. They are suitable for pressing, welding, forging and other processing, so they are widely used in aerospace and industrial production. Due to its light weight and high pressure resistance, special-shaped shell parts are widely used in the fields of weaponry, aerospace and power engineering, petrochemical and energy power. These parts have complex structures and special shapes, so there are strict requirements on their processing technology. [0003] At present, the production methods of special-shaped shell components mainly include machining, welding ...

AI Technical Summary

Problems solved by technology

However, when the flange of the shell mouth is formed, it is easy to cause instability, problems such as collapse, folding, burrs, and insufficient filling, which cannot meet the requirements of the size and performance of the parts.

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